Relative clauses give extra information about a noun or pronoun in a sentence.[1]https://www.st-agnes.manchester.sch.uk/year-6-circles/relative-clauses/https://www.st-agnes.manchester.sch.uk/year-6-circles/relative-clauses/
They usually start with a relative pronoun.
Who
“Who” is a relative clause used as the subject or object pronoun for people.[2]https://englishstudyhere.com/grammar/relative-clauses-detailed-expressions/
For example:
- People who
do sports are fit. - The student who
studies in the library will do well on the test. - The person who
does yoga is flexible
Whom
“Whom” is a relative clause that refers to the people used as the object of a sentence.[3]https://www.slideshare.net/Ifahanwar/passive-voice-relative-clauses-causative-and-subordinating-conjungtion
For example:
- He is the person whom I told you about.
- From whom
did you receive this present? - To whom
did you give the cake?
Which/That
“Which” or “that” is used as the subject or object pronoun for animals or things.
For example:
- The car that
I was driving is very old. - The horse,
which you were feeding, was very hungry. - The house that
she lives in is very big.
Where
“Where” is used to refer to a place.
For example:
- I found the house where I used to live when I was little.
- The school where
I went to is very small. - The town where
she lives is very far away.
When
“When” is used to refer to time.
For example:
- I will never forget the day when I first met you.
- When
I was young, I used to go to the beach every summer. - She was very short when she was young.
Whose
“Whose” is used for possession for things, animals, and people.
For example:
- The dog whose
master is not home is very sad. - The little girl whose birthday is today is very happy.
- The father whose
son is graduating today from university is very proud and happy.
Example Exercises
Choose the proper relative clauses to complete the sentences.
How did you do?
If some of these questions were tricky don’t worry — this is one of the topics that confuses English learners the most.
Sometimes reading alone isn’t enough. A private one on one lesson can clear up any confusion quickly and help you use this grammar naturally and confidently.

References
